Cooling of Electrical And/Or Electronic Components, Specifically Computer Equipment

1. Fan for drawing in cooling air for at least one of electrical and electronic components, comprising: a housing with at least one suction opening, at least one outlet opening and at least one wheel arranged between the suction opening and the outlet opening for rotation on an axis and bearing a number of blades; a frame; and a number of walls enclosing the electrical components, wherein the at least one suction opening and the at least one outlet opening for cooling air is formed in the walls, and wherein the at least the suction opening is provided with filter material, and the fan is connected to at least one of the electrical and electronic components via at least one of a connecting part and a connecting hose, wherein the blades in the wheel are placed and embodied such that the flow of the cooling air generated thereby has a radial or centrifugal component, and the housing includes a base plate having a means for fixing the fan to at least one of a connecting part and a cooling hose, the at least one of the connecting part and the cooling hose being connectable to the at least one electrical and electronic components.

2. Fan as claimed in claim 1 , wherein the blades extend at least partly parallel to the rotation axis of the wheel.

3. Fan as claimed in claim 2 , wherein the blades are formed by elongate, profiled slats arranged distributed on a rotatable ring and extending substantially parallel to the rotation axis of the ring.

4. Fan as claimed in claim 3 , wherein the suction opening debouches within a periphery defined by the slats.

5. Fan as claimed in claim 1 , wherein the housing has an inner wall moving in a spiral shape away from the wheel in the rotation direction of the blade wheel.

6. Fan as claimed in claim 1 , wherein the outflow opening is oriented substantially transversely of the rotation axis of the blade wheel.

7. Fan as claimed in claim 1 , wherein the wheel has a dimension in an axial direction and a diameter, the axial dimension of the blade wheel being substantially equal to the diameter.